Loading next page...
/lp/ams/sensitivity-of-idealized-moist-baroclinic-waves-to-environmental-B2pfRKUzb0
- Publisher
- American Meteorological Society
- Copyright
- Copyright © American Meteorological Society
- ISSN
- 1520-0469
- D.O.I.
- 10.1175/JAS-D-17-0188.1
- Publisher site
- See Article on Publisher Site
Abstract
AbstractIdealized simulations are used to examine the sensitivity of moist baroclinic wave growth to environmental temperature and moisture content. With relative humidity held fixed, the surface temperature at 45°N, denoted T0, is varied from 275 to 290 K. As T0 increases, the atmospheric moisture content, moist instability, and moist available potential energy also increase. For the chosen initial configuration, moist waves develop larger eddy kinetic energy Ke than corresponding dry waves, but enhanced diabatic heating at larger T0 does not further increase Ke. This finding is linked to a warm-frontal cyclonic potential vorticity (PV) anomaly that strengthens and shifts downstream at larger T0 owing to increased diabatic heating along the frontal cloud band. This eastward shift feeds back negatively on the parent cyclone by increasing the downstream export of mechanical energy aloft and degrading the phasing between dry baroclinic vertical motion and buoyancy within the warm sector. The latter suppresses the conversion from eddy potential energy to Ke [C(Pe, Ke)], offsetting a direct enhancement of C(Pe, Ke) by diabatic heating. Compared to their dry counterparts, isolated moist waves (initiated by a single finite-amplitude PV anomaly) display a similar sensitivity to T0, while periodic wave trains (initiated by multiple such anomalies) exhibit a stronger negative relationship. The latter stems from anticyclonic diabatic PV anomalies aloft that originate along the warm front and recirculate through the system to interact with the upper-level trough. This interaction leads to a horizontal forward wave tilt that enhances the conversion of wave Ke into zonal-mean kinetic energy.
Journal
Journal of the Atmospheric Sciences – American Meteorological Society
Published: Jan 20, 2018
Recommended Articles
Loading...
References
-
Boundary-layer friction in midlatitude cyclonesAdamson, D. S.; Belcher, S. E.; Hoskins, B. J.; Plant, R. S.
-
The dynamics of a midlatitude cyclone with very strong latent-heat releaseAhmadi-Givi, F.; Craig, G. C.; Plant, R. S.
-
The effects of convection on a simulated marine cycloneBalasubramanian, G.; Yau, M. K.
-
Will extratropical storms intensify in a warmer climate?Bengtsson, L.; Hodges, K. I.; Keenlyside, N.
-
Midlatitude storms in a moister world: Lessons from idealized baroclinic life cycle experimentsBooth, J. F.; Wang, S.; Polvani, L.
-
Moisture transport in midlatitude cyclonesBoutle, I.; Belcher, S. E.; Plant, R. S.
-
Potential vorticity diagnostics to quantify effects of latent heating in extratropical cyclones. Part I: MethodologyBüehler, D.; Pfahl, S.
-
Northern Hemisphere extratropical cyclones in a warming climate in the HiGEM high-resolution climate modelCatto, J. L.; Shaffrey, L. C.; Hodges, K. I.
-
The dynamics of long waves in a baroclinic westerly currentCharney, J. G.
-
Historical evaluation and future prediction of eastern North American and western Atlantic extratropical cyclones in the CMIP5 models during the cool seasonColle, B. A.; Zhang, Z.; Lombardo, K. A.; Chang, E.; Liu, P.; Zhang, M.
-
A potential-vorticity diagnosis of the importance of initial structure and condensational heating in observed extratropical cyclonesDavis, C. A.
-
Potential vorticity diagnostics of cyclogenesisDavis, C. A.; Emanuel, K. A.
-
The integrated effect of condensation in numerical simulations of extratropical cyclogenesisDavis, C. A.; Stoelinga, M. T.; Kuo, Y.-H.
-
Baroclinic waves with parameterized effects of moisture interpreted using Rossby wave componentsDe Vries, H.; Methven, J.; Frame, T. A.; Hoskins, B. J.
-
Long waves and cyclone wavesEady, E. T.
-
An air-sea interaction theory for tropical cyclones. Part I: Steady-state maintenanceEmanuel, K. A.
-
Baroclinic instability in an environment of small stability to slantwise moist convection. Part I: Two-dimensional modelsEmanuel, K. A.; Fantini, M.; Thorpe, A. J.
-
Baroclinic instability of a zero-PVE jet: Enhanced effects of moisture on the life cycle of midlatitude cyclonesFantini, M.
-
Transient growth of damped baroclinic wavesFarrell, B.
-
Optimal excitation of baroclinic wavesFarrell, B.
-
The equilibration of short baroclinic wavesGovindasamy, B.; Garner, S. T.
-
Objective classification of extratropical cyclogenesisGraf, M. A.; Wernli, H.; Sprenger, M.
-
A simple theoretical model for the intensification of tropical cyclones and polar lowsGray, S. L.; Craig, G. C.
-
The WRF single-moment 6-class microphysics scheme (WSM6)Hong, S.-Y.; Lim, J.-O. J.
-
A new vertical diffusion package with an explicit treatment of entrainment processesHong, S.-Y.; Noh, Y.; Dudhia, J.
-
A new look at the ω-equationHoskins, B. J.; Draghici, I.; Davies, H. C.
-
On the use and significance of isentropic potential vorticity mapsHoskins, B. J.; McIntyre, M. E.; Robertson, A. W.
-
The Kain–Fritsch convective parameterization: An updateKain, J. S.
-
The role of moisture in the dynamics and energetics of turbulent baroclinic eddiesLapeyre, G.; Held, I. M.
-
Available potential energy and the maintenance of the general circulationLorenz, E. N.
-
Cyclogenesis in a conditionally unstable moist baroclinic atmosphereMak, M.
-
Changes in U.S. East Coast cyclone dynamics with climate changeMarciano, C. G.; Lackmann, G. M.; Robinson, W. A.
-
Scales of linear baroclinic instability and macroturbulence in dry atmospheresMerlis, T. M.; Schneider, T.
-
The effective static stability experienced by eddies in a moist atmosphereO’Gorman, P. A.
-
Increase in the skewness of extratropical vertical velocities with climate warming: Fully nonlinear simulations versus moist baroclinic instabilityO’Gorman, P. A.; Merlis, T. M.; Singh, M. S.
-
A modified approach to initialize an idealized extratropical cyclone within a mesoscale modelOlson, J. B.; Colle, B. A.
-
The life cycle of a cyclone wave in the Southern Hemisphere. Part I: Eddy energy budgetOrlanski, I.; Katzfey, J.
-
On the development of extratropical cyclonesPetterssen, S.; Smebye, S. J.
-
Extratropical cyclones in idealized simulations of changed climatesPfahl, S.; O’Gorman, P. A.; Singh, M. S.
-
Transport and mixing of chemical air masses in idealized baroclinic life cyclesPolvani, L. M.; Esler, J. G.
-
The role of latent heat release in explosive cyclogenesis: Three examples based on ECMWF operational forecastsReed, R. J.; Simmons, A. J.; Albright, M. D.; Unden, P.
-
Structure and evolution of an isolated semi-geostrophic cycloneSchär, C.; Wernli, H.
-
Surrogate climate-change scenarios for regional climate modelsSchär, C.; Frei, C.; Lüthi, D.; Davies, H. C.
-
Warm conveyor belts in idealized moist baroclinic wave simulationsSchemm, S.; Wernli, H.; Papritz, L.
-
Water vapor and the dynamics of climate changesSchneider, T.; O’Gorman, P. A.; Levine, X. J.
-
Baroclinic instability on the sphere: Normal models of the primitive and quasi-geostrophic equationsSimmons, A. J.; Hoskins, B. J.
-
Accurate computation of moist available potential energy with the Munkres algorithmStansifer, E. M.; O’Gorman, P. A.; Holt, J. I.
-
A potential vorticity-based study of the role of diabatic heating and friction in a numerically simulated baroclinic cycloneStoelinga, M. T.
-
“Coupling development”: An efficient mechanism of the development of extratropical cyclonesTakayabu, I.
-
Two paradigms of baroclinic-wave life-cycle behaviourThorncroft, C. D.; Hoskins, B. J.; McIntyre, M. E.
-
On the interpretation of the diagnostic quasi-geostrophic omega equationTrenberth, K. E.
-
Cyclogenesis in a saturated environmentWhitaker, J. S.; Davis, C. A.
-
The importance of resolving mesoscale latent heating in the North Atlantic storm trackWillison, J.; Robinson, W. A.; Lackmann, G. M.
-
A multimodel assessment of future projections of north Atlantic and European extratropical cyclones in the CMIP5 climate modelsZappa, G.; Shaffrey, L. C.; Hodges, K. I.; Sansom, P. G.; Stephenson, D. B.
@Phil_Robichaud
@deepthiw
@JoseServera